What is a regression?

[Andrew MacLeod]

Jason Merrill wrote:
>
> Similarly, bugs marked as 4.1/4.2/4.3 regression don't seem like a 
> high priority to me.  If a bug wasn't a blocker for 4.2, it shouldn't 
> be a blocker for 4.3.  It makes sense to give such a bug a higher 
> priority than it would normally (say, one point higher), but it seems 
> to me that only regressions relative to the previous release series 
> should actually be considered for release timing.
>

I think this is a very important point.  If it didn't block a previous 
release, it shouldn't block the current release. It doesn't mean it 
shouldn't get looked at, but it also shouldn't be a blocker.  I think 
the high priority regressions should be ones that are new to 4.3 because 
they have clearly been either introduced or exposed by this release and 
need to be dealt with. 

Andrew